The western terminus of the Whitehorse Trail is in Arlington, at a junction with the Centennial Trail on the north side of the Stillaguamish River at the confluence with its two forks. The Centennial Trail continues north towards Bryant and south towards Snohomish along another former rail corridor. The Whitehorse Trail continues northeast, following the North Fork Stillaguamish River upstream to a trailhead in Trafton, where it crosses the river on a historic trestle bridge. The trail turns east, following State Route 530 on the south side of the North Fork, towards Oso. east of Oso, the trail passes a memorial to victims of the 2014 Oso mudslide, which had destroyed a section of the trail's corridor. From Oso, the Whitehorse Trail passes through the historic towns of Fortson and Hazel, and the modern community of Swede Heaven, on its approach to Darrington. The trail splits north of downtown Darrington, with one branch heading northeast to Whitehorse Community Park on the Sauk River and another heading south to Railroad Avenue in downtown, passing Darrington Municipal Airport. The majority of the planned trail will be wide and have a surface of compacted gravel. It has been designated for use by walkers, cyclists and horseback riders.
History
The Northern Pacific Railway, owners of the railroad through Arlington, built a branch line to Darrington in 1901. The railroad primarily delivered lumber from Darrington and intermediate sawmills to Arlington, Everett and other towns, but also carried weekly passenger service. In 1970, the Northern Pacific was acquired by Burlington Northern, who continued to run a declining number of lumber trains on the branch as Darrington's remaining sawmill switched to truck transport. In November 1990, major floods in the Stillaguamish River basin left the railroad damaged and unusable, leading to its formal abandonment by Burlington Northern. The county government debated acquiring the railroad for use as either a recreational trail or a scenic railroad, the latter requiring millions spent in repairs. In November 1993, the Snohomish County Council approved $550,000 paid to Burlington Northern to acquire on the corridor, with the intent of converting into a recreational trail. The first section of the trail, named the Whitehorse Trail, opened in 2002 near Darrington and covered of the planned trail. An unfinished section of the trail was destroyed during the Oso mudslide on March 22, 2014, along with State Route 530. In the aftermath of the mudslide, which killed 43 people, the Whitehorse Trail became a key project in the recovery of the area, employing local workers and drawing tourists. A $75,000 grant from the State of Washington, along with private donations, funded the cleanup of of the trail and repair of older bridges. A segment of the Whitehorse Trail from Oso to Cicero Pond will be completed in 2018, using $4.24 million in funds from the county government, Washington State Department of Transportation and Federal Emergency Management Agency. Rebuilding of the section destroyed by the Oso mudslide was completed in 2016, using FEMA funds.
